20326825

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:138

約数の個数: 36

約数和(自身を含む): 27771660

約数和(自身を除く): 7444835

約数列:

[1, 5, 23, 25, 29, 53, 115, 145, 265, 529, 575, 667, 725, 1219, 1325, 1537, 2645, 3335, 6095, 7685, 13225, 15341, 16675, 28037, 30475, 35351, 38425, 76705, 140185, 176755, 383525, 700925, 813073, 883775, 4065365, 20326825]

約数ペア:

[(1, 20326825), (5, 4065365), (23, 883775), (25, 813073), (29, 700925), (53, 383525), (115, 176755), (145, 140185), (265, 76705), (529, 38425), (575, 35351), (667, 30475), (725, 28037), (1219, 16675), (1325, 15341), (1537, 13225), (2645, 7685), (3335, 6095)]